/* 
 * Copyright 2006-2015 www.anyline.org
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 *          
 */


package org.anyline.web.tag;


import java.math.BigDecimal;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;

import org.anyline.util.BasicUtil;
import org.anyline.util.NumberUtil;
import org.apache.log4j.Logger;


public class NumberFormat extends BaseBodyTag implements Cloneable{
	private static final long serialVersionUID = 1L;
	private static final Logger log = Logger.getLogger(NumberFormat.class);
	private String format;
	private Object min;
	private Object max;
	private String def;

	public String getFormat() {
		return format;
	}


	public void setFormat(String format) {
		this.format = format;
	}


	public int doEndTag() throws JspException {
		try{
			String result = "";
			if(null == value){
				value = body;
			}
			if(BasicUtil.isEmpty(value)){
				value = def;
			}
			if(BasicUtil.isNotEmpty(value)){
				BigDecimal num = new BigDecimal(value.toString());
				if(BasicUtil.isNotEmpty(min)){
					BigDecimal minNum = new BigDecimal(min.toString());
					if(minNum.compareTo(num) > 0){
						num = minNum;
						log.warn("[number format][超过最小值:"+min+"]");
					}
				}
				if(BasicUtil.isNotEmpty(max)){
					BigDecimal maxNum = new BigDecimal(max.toString());
					if(maxNum.compareTo(num) < 0){
						num = maxNum;
						log.warn("[number format][超过最大值:"+max+"]");
					}
				}
				result = NumberUtil.format(num,format);
				JspWriter out = pageContext.getOut();
				out.print(result);
			}
		}catch(Exception e){
			e.printStackTrace();
		}finally{
			release();
		}
        return EVAL_PAGE;   
	}


	@Override
	public void release() {
		super.release();
		value = null;
		format = null;
		body = null;
		def = null;
		min = null;
		max = null;
	}
	@Override
	protected Object clone() throws CloneNotSupportedException {
		return super.clone();
	}
}